AS9092 OPENSYSTEMS-AS Open Systems AG

OPENSYSTEMS-AS Open Systems AG · registered in Switzerland

IPv4 addresses5,1203 prefixes · <0.001% of announced IPv4

Rank in Switzerland#136largest network in CH by IPv4 space, of 741 · 0.03% of CH

Rank worldwide#13,282of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountrySwitzerland783 ASNs registered there

Open AS9092 in ASN lookup Look up an IP in this network (213.156.224.1) All networks in Switzerland

IPv4 prefixes

All 3 prefixes, in address order.

213.156.224.0/20
213.156.240.0/23
213.156.246.0/23

IPv6 prefixes

All 1 prefix.

2a00:db0::/32

Similar-sized networks in Switzerland

ASNNameIPv4 addresses

AS20988#133 MTF-Solutions-AG MTF Solutions AG5,120

AS35206#134 NOVATREND-AS NovaTrend Services GmbH5,120

AS58222#135 SERVERBASE synaforce Schweiz AG5,120

AS34554#137 ANTANET Antares Kommunikationstechnik AG5,120

AS8659#138 AS8659 United Nations International Computing Centre5,120

AS8247#139 Calltrade-Zurich Intellico AG5,120

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources